JSFiddle - React, Tailwind, and code Playground

HTML

<pre id='output'> (<span class='light'>highlighted</span> portion) </pre>
<button id='save'>Save as PDF</button>

CSS

.light {
    color:#0af;
}

JavaScript

$("#save").click(function() {
  var text = $("#output")[0].outerHTML;
  var styles = $("style")[0].outerHTML;
  var popup = window.open("", "popup");
  popup.document.body.innerHTML = text + styles;
  popup.focus();
  popup.print();
});